Single-phase Charge-controlled Smart Energy Meter

Main Features: Measurement function: Measure positive active energy, negative active energy and time-interval energy; can store at least 12 months total energy and energy of each tariff; Charge-controlled function: Energy meter inside itself can calculate real-time credit, when setting meter parameters, pre-storing electricity charge, writing back information and distributing remote control commands to operate, all requires safety certification through the ESAM; Measuring and monitoring: to measure, record, display the current energy meter voltage, current (including neutral line current), power, power factor and other operating parameters; Event log: Permanently record the clearance event and accurately record events of programming, time adjustment, the power-failure, switch-on and switch-off as well as meter cover opening event; Rates, Time-interval and price options: two time zones can be set in a whole year; can freely program 8 time intervals within 24 hours, with two sets of tariff time intervals and two sets of price options, each set of time intervals supports 4 a rate; Display: LCD monitor, high-contrast, wide angle, life expectancy over 10 years under normal condition; Alarm function: When the meter has faults, the LCD monitor displays an error message; Freezing function: Can realize timing freeze, instant freeze, agreed to freeze, day freezing and freezing on the hour; the corresponding data identifications accord with DL / T 645-2007 and recorded documents requirements; Timing function: built-in hardware clock circuit with temperature compensation, and calendar, time, leap year automatic conversion ; Pulse output: Has the LED pulse and electric pulse output in direct proportion to the measured energy; Communication Functions: with infrared interface, the carrier module interface and RS485 interface independent with each other on physical layer; the damage of one communication interface does not affect the normal operation of other communication interface; load switch can be set according to need - internal or external. Main technical indicators: ItemsTechnical Parameters( Can be customized as requirements)Accuracy classclass1.0 class 2.0Rated voltage220VBasic Current1.5A 5A 10A 20A Rated Frequency50HzPower Consumption(W)Power (W) Voltage circuit power consumption:≤ 1.5 W, 5 VACurrent circuit consumption:≤1VA( Ib )Voltage Range0.7Un 1.2UnImpulse Constant16000imp/kWh 3200imp/kWh 2400imp/kWh1600imp/kWh 1200imp/kWh 800imp/kWh600imp/kWh Start Current0.4%IbNormal work temperature range-25°C +60°CExtreme operating temperature-40°C +70°CRelative Humidity≤95% RHLife(years)≥10